NUVOX
model(s) wire color pin number
CB-7000 Audio 1
  Ground 4
  N/C N/C
  Common 3
  PTT 2
  receive N/C
model(s) wire color pin number
TC-5020 Audio 1
  Ground 6
  N/C 2
  Common 4
  PTT 5
  receive 3
Not compatible with Silver Eagle plus)